#0 0x00002b07f35dd620 in strlen () from /lib/libc.so.6 #1 0x00002b07f35ad7a7 in vfprintf () from /lib/libc.so.6 #2 0x00002b07f35c8de9 in vsprintf () from /lib/libc.so.6 #3 0x0000000000405eb8 in vs_vcat (p_vs=0x609500, p_format=0x406b40 "cannot open input file %s", list=0x7fffb797e5b0) at vstr.c:159 #4 0x000000000040161d in printerror ( p_format=0x406b40 "cannot open input file %s") at dvdspanky.c:215 #5 0x00000000004048c1 in main (argc=3, argv=0x7fffb797efc8) at dvdspanky.c:1117